Whether you're shooting digitally or on film, Fotodiox Lens Adapter Astro Edition for T-Mount Wide Field Telescopes to Canon EF/EF-S-Mount Cameras offers all-metal, no plastic construction to create a secure connection between your glass and camera that will not degrade over time, keeping the lens-camera connection secure with every use. We use chrome-plated brass mounts for enhanced durability and reliability.
Astro Edition adapters are designed specifically for wide field, deep space Astrophotography Telescopes. The 48 x 0.75mm female end screws into your wide field telescope and the smaller 42 x 0.75mm male side will fit any standard T-Mount (T/T2) adapter to another camera of your choice.
The Pro line of adapters is crafted to withstand the rigors and demands of the professional photographer. These adapters are manufactured with precise tolerances, providing a solid, gap-free, no-wiggle connection for stress-free use. Fotodiox adapters are meant to be taken off and put back on your camera as much as needed while remaining as precise as the day you bought them.

Designed for Astro Photographers    Precise Fit and Solid Connection    Chrome Plated Brass Mounts    Precision All-Metal Construction

Related Questions and Answers

Q: 1. I have a Nikon D3400 and a Canon 75-300 zoom lens. Will this adapter work?

A: No, i'm sorry but that adapter won't work. You will need a Nikon F to Canon EOS adapter. Please click the link below to view; https://bhpho.to/2MBwwZd

Q: 2. What is the internal diameter of the threaded end?

A: The internal diameter of the Fotodiox T-mount to RF adapter's threaded end measures 41.62mm / 1.63" with our vernier calipers.

Q: 3. Adapter will not release from the 100-400 Canon EF lens. I cannot find a release mechanism anywhere. Any solutions?

A: Hi Thomas, Sorry to take so long to get back to you. It is very simple to release the Canon/ Fuji adapter. Just slide the little button toward the blue ring. Twist as normal and that's it. Good Luck! I use mine on the Rokinon 8mm fish-eye (B&H) on my Fuji and it is great!

Q: 4. This is an interesting, if confusing, lens. I understand that if I try to mount my canon EF 35f2 to the camera, the lens aperture will be stuck wide open to F 2.0. If I use the IRIS control on the adapter wide open, I will still have an effective 2.0 aperture, correct?If I close the IRIS on the adaptor, will my image become sharper, similar to stopping down the EF lens?

A: Yes, iris control on the adapter is the same as aperture control on a lens.

Q: 5. so, i can manually focus (not auto focus) and still see in the view finder when I have a sharp focus?

A: Yes. That is the case.

Q: 6. does focus peaking and focus magnify work?

A: Yes on my XT1

Q: 7. I purchased this x mount recently but can not get the shutter to release on my Fujifilm X-T2! I have set everything to manual including front camera dial setting to M and checked all menus to set from AF to manual what am I missing? Appreciate any help from someone who may have experienced same issue, thanks!

A: Please see in menu the option to Release shutter without lens and turn on. This will activate the shutter.

Q: 8. Hi, I have an EF lens I wanna use on my canon ae1, which is FD... will it work that way?

A: No it will not work , EF lenses have electronic aperture and there is no way to control it manually

Q: 9. I want to use this adapter with my XT-2 and Carl Zeiss (ZE) lenses, so I'm ok focusing manually, and I think the built-in iris control should help with the lack of an aperture ring on the lenses, but what kind of disadvantages should I expect by using these three (camera, adapter, lenses) together?

A: the aperture doesn't work - dont bother

Q: 10. What is the inner diameter of the T-adapter? Is it the standard 42mm or the 48mm wide version?

A: The FotodioX Lens Adapter Astro Edition for T-Mount Telescopes to FUJIFILM G has a 42mm diameter.